“I’ve got a little bitty hitch in my left giddy up, but I think we’ll be all right,” Bret said during his concert, which was being filmed for his new VH1 reality series titled Bret Michaels: Life As I Know It.

But it’s more than just a “little bitty hitch,” according to the doctors who spoke with HollywoodLife.com.

“I would be certainly very leery about [him performing already],” says Dr. John Osborne MD PHD, a Dallas-based cardiologist from State of the Heart Cardiology. “I’m shocked that he can even be out of the hospital; he was INCREDIBLY fortunate. Usually when this happens, risk of death is 80 percent. He just needs to be very careful.”